I Am also Partially deaf, On my right side. I can Hear breathe sounds and heart tones quite well, I dont have any trouble in the field at all. If i ever did , I would not hesitate to ask my partner to help me.
I have came close a couple of times. I have a really good stomach but you cough something up and expect me to catch it in a tissue I am going to GAG. The other thing is smell in houses, My partner teased me to the point of almost puking in the truck ...But i didnt I waited until we got back to the station. SOmething about stepping in dog poop and unrine that can get me.